Our goal: Recovering 800,000 years of climate, ecological, and volcanic history recorded in lake sediment on the southern edge of Mexico City. (MexiDrill on facebook) Major funding agencies: ICDP, NSF, UNAM Partners in the field program: University of Minnesota Duluth, Universidad Nacional Autónoma de México, University of Pittsburgh, University of Minnesota Twin Cities, University of New Mexico, Leibniz Institute of Advanced Geophysics, TU Braunschweig, Instituto Pirenaico de Ecologia, University of Oxford